And even if you have no Node.js on your computer, you can install it when creating a new Node.js application in the Create New Project dialog, see Creating a new Node.js application below.
If you want to switch among several Node.js installations, they must be configured as local Node.js interpreters. In most cases, RubyMine detects Node.js installations, configures them as interpreters automatically, and adds them to the list where you can select the relevant one.
To run a Node.js application remotely, configure it as a remote interpreter. See Node.js with Docker for details.
Switching between Node.js versions
With RubyMine, you can have several installations of Node.js and switch between them while working on the same project.
On the Node.js and NPM page that opens, select the required Node.js installation from the Node Interpreter list.
If you followed the standard installation procedure, in most cases the required Node.js installation is on the list. If the installation is missing, click and configure it as a local interpreter manually.
Using a system Node.js version
With RubyMine, you can set the default system node alias as your project’s Node.js version. After that this version will be automatically used by all the tools that require Node.js and in all new run/debug configurations. In particular, this means that you will not have to update the settings for each tool if you install a new Node.js version and make it the default node alias in your system.
Configuring a local Node.js interpreter
You may need to configure Node.js installation as an interpreter manually, for example, if Node.js is installed in a non-default location so RubyMine does not detect it automatically.
On the Node.js and NPM page, that opens, click next to the Node Interpreter list.
In the Node.js Interpreters dialog that opens with a list of all the currently configured interpreters, click on the toolbar. In the dialog that opens, choose Add Local from the context menu and choose the installation of Node.js, then click OK. You return to the Node.js Interpreters dialog where the Node interpreter read-only field shows the path to the new interpreter.
See Configuring a package manager for a project for details.
When you click OK, you return to the Node.js and NPM page where the Node interpreter field shows the new interpreter.
Using Node.js on Windows Subsystem for Linux
RubyMine lets you run and debug Node.js applications using Node.js on Windows Subsystem for Linux. You can choose Node.js on WSL as the default interpreter for the current project or you can configure and use this node version in a Node.js Run/Debug configuration.
Configure Node.js on WSL as the default project node interpreter
Click next to the Node Interpreter field, in the Node.js Interpreters dialog that opens, click , and then select Add WSL from the list.
In the Add WSL Node Interpreter dialog that opens, select the Linux distribution you’re using and specify the path to Node.js.
Creating a Node.js application
If you have no application yet, you can generate a RubyMine project with Node.js-specific structure from a template or create an empty RubyMine project and configure Node.js in it as described in Starting with an existing Node.js application below.
Create a new Node.js application
In the left-hand pane, choose Node.js to create a basic Node.js application or Node.js Express App to create an Express application.
If you have only one Node.js on your machine and you followed the standard installation procedure, RubyMine detects your Node.js automatically. Otherwise, choose the relevant interpreter from the list, see Configuring a local Node.js interpreter above.
If you have no Node.js installed, select Download Node.js.
For Node.js Express app, specify the express -generator in the express-generator field.
It is recommended that you use npx that downloads and runs the generator. To do that, select npx --package express-generator express from the express -generator list.
Select the template language and the Style Sheet language to use.
When you click Create, RubyMine downloads the necessary dependencies and enables code completion for them as well as for the Node.js core APIs, see Configuring node_modules library and Configuring Node.js Core library for details.
For Node.js Express, RubyMine creates a run/debug configuration of the type Node.js with default settings and generates a basic Node.js Express-specific directory structure.
For Node.js, RubyMine just runs the
npm initcommand to generate a package.json file.
Create an empty RubyMine project
Starting with an existing Node.js application
If you are going to continue developing an existing Node.js application, open it in RubyMine, configure Node.js in it, and download the required dependencies.
Open the application sources that are already on your machine
Check out the application sources from your version control
Click Get from Version Control on the Welcome screen or select from the main menu.
In the invoked dialog, select your version control system from the list and specify the repository to check out the application sources from.
Configure Node.js in a project
In the Node Interpreter field, specify the default Node.js interpreter for the current project. RubyMine will automatically use it every time you select the
Projectalias from Node Interpreter lists when creating run/debug configurations or configuring Node.js-dependent tools, for example, Prettier or ESLint.
Select a configured interpreter from the list or click and configure a new one in the dialog that opens as described in Configuring a local Node.js interpreter. If you select node, the system Node.js version is used.
http, and other parts of Node.js that are compiled into the Node.js binary.
If you need code completion for Node.js APIs only in some parts of your project, you can configure that using the Manage scopes link. In the Usage dialog that opens, click the relevant directories and for each of them select the configured Node.js Core library from the list. Learn more from Configuring the scope of a library.